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Chemistry
Few general names are given along with their valence shell configurations. Mark the incorrect name.
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Q. Few general names are given along with their valence shell configurations. Mark the incorrect name.
Classification of Elements and Periodicity in Properties
A
$ns^2\, np^6$ - Noble gases
9%
B
$ns^2\, np^5$ - Halogens
10%
C
$ns^1$ - Alkali metals
14%
D
$ns^2\, np^2$ - Chalcogens
67%
Solution:
$ns^2\, np^2$ are members of carbon family. Chalcogens is the general name of 16th group elements.